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- S.N. Bose National Centre for Basic SciencesIN20 papers
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8 papers · 1 filter
A Fibonacci atomic chain with side coupled quantum dots: crossover from a singular continuous to a continuous spectrum and related issues
Arunava Chakrabarti, Samar Chattopadhyay
Interaction of bound states with a singular continuous spectrum is studied using a one dimensional Fibonacci quasicrystal as a prototype example. Single level quantum dots are atta…
Design and Implementation of Prosthetic Arm using Gear Motor Control Technique with Appropriate Testing
Biswarup Neogi, Soumyajit Mukherjee, Soumya Ghosal +2
Any part of the human body replication procedure commences the prosthetic control science. This paper highlights the hardware design technique of a prosthetic arm with implementati…
Electron states and magneto-transport in a graphene geometry with a fractal distribution of holes
Biplab Pal, Arunava Chakrabarti, Nitai Bhattacharya
We consider an infinite graphene geometry where bonds and sites have been removed selectively to map it onto an effective Sierpinski gasket comprising of hexagons. We show that suc…
A proposal for the measurement of Rashba and Dresselhaus spin-orbit interaction strengths in a single sample
Santanu K. Maiti, Shreekantha Sil, Arunava Chakrabarti
We establish an exact analytical treatment for the determination of the strengths of the Rashba and Dresselhaus spin-orbit interactions in a single sample by measuring persistent s…
On the extendedness of eigenstates in a hierarchical lattice: a critical view
Biplab Pal, Arunava Chakrabarti, Nitai Bhattacharya
We take a critical view at the basic definition of extended single particle states in a non-translationally invariant system. For this, we present the case of a hierarchical lattic…
Design of coupling for synchronization in time-delayed systems
Dibakar Ghosh, Ioan Grosu, Syamal Kumar Dana
We report a design of delay coupling for targeting desired synchronization in delay dynamical systems. We target synchronization, antisynchronization, lag-, antilag- synchronizatio…